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D. Reinstall Cooling Unit electrical control box and secure with four screws.
E. Install cover on electrical handy box on back of Cooling Unit.
CONNECTING PLAIN WATER INLET SUPPLY LINE TO COOLING UNIT
(see Figure 2)
NOTE: IMI Cornelius Inc. recommends that a water shutoff valve be installed in plain water inlet supply
line connected to Cooling Unit and that water supply be filtered. WATER PIPE CONNECTIONS AND
FIXTURES DIRECTLY CONNECTED TO A POTABLE WATER SUPPLY SHALL BE SIZED, INSTALLED
AND MAINTAINED ACCORDING TO FEDERAL, STATE, AND LOCAL LAWS.
CAUTION: Plain water inlet supply line to Cooling Unit must be 1/2-inch I.D. minimum.
Check water flow rate of water inlet supply line. MINIMUM FLOW RATE MUST BE AT LEAST
250-GALLONS PER HOUR. If flow rate is less than 250-gallons per hour, ‘ ‘starving’’ of
carbonator water pump will occur. Starving will allow water pump to overheat causing safety
thermostat on pump outlet to disrupt electrical power to and stop water pump motor. Carbonated
water circulating pump overheating could occur if water inlet supply line flow rate drops below
250-gallons per hour. INCOMING PLAIN WATER INLET SUPPLY LINE WATER PRESSURE MUST
REMAIN A MINIMUM OF 10-PSI BELOW THE CARBONATOR CO
2
OPERATING PRESSURE
(Example: operating CO
2
pressure is 90-psi and maximum water pressure can be no more than
80-psi, etc.)
1. Before connecting plain water inlet supply line to Cooling Unit, open water line shutoff valve for a period of
time to flush out any metal shavings and other contaminates that may have resulted from plumbing
connections.
2. Connect flexible plain water inlet supply line (1/2-inch I.D. min.), meeting water inlet supply line
requirements of preceding CAUTION note, to Cooling Unit 3/8-in. flare (5/8-18) bulkhead fitting on back of
unit labeled ‘‘WATER INLET’’. DO NOT OPEN WATER INLET SUPPLY LINE SHUTOFF VALVE AT THIS
TIME.
CONNECTING CO
2
INLET SUPPLY LINE TO COOLING UNIT
(see Figure 2)
WARNING: CO
2
displaces oxygen. Strict attention must be observed in the prevention of
CO
2
(carbon dioxide) gas leaks in the entire CO
2
and soft drink system. If a CO
2
gas leak is
suspected, particularly in a small area, immediately ventilate the contaminated area before
attempting to repair the leak. Personnel exposed to high concentration of CO
2
gas will experience
tremors which are followed rapidly by loss of consciousness and suffocation.
Connect flexible CO
2
inlet supply line to Cooling Unit 1/4-in. flare (7/16-20) bulkhead fitting of back of unit
labeled ‘‘CO
2
INLET’’. DO NOT TURN ON CO
2
SUPPLY TO COOLING UNIT AT THIS TIME.
CONNECTING SYRUP SOURCE LINES TO COOLING UNIT SYRUP INLET LINES
(see Figure 2 )
Connect syrup source lines, from No. 1 through No. 6 soft drink tanks location, to Cooling Unit syrup inlet lines
labeled No. 1 through No. 6. DO NOT CONNECT SOFT DRINK TANKS INTO SYRUP SYSTEMS AT THIS
TIME.